The decision of widening of highway is always a complex matter involving consideration of traffic flow, environment impact, land use and costs. The traffic conditions are examined by using different surveys like traffic volume count, spot speed and feasibility study of existing road with the help of HCM-2000(Highway Capacity Manual).Roadway factors including the lane width, lateral clearance, width of shoulders etc. Also have impact on traffic which may affect the speed of the vehicle, level of service and safety.